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Grade 9 Titanium vs. C66900 Brass

Grade 9 titanium belongs to the titanium alloys classification, while C66900 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 9 titanium and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 11 to 17
1.1 to 26
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
45
Shear Strength, MPa 430 to 580
290 to 440
Tensile Strength: Ultimate (UTS), MPa 700 to 960
460 to 770
Tensile Strength: Yield (Proof), MPa 540 to 830
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 330
150
Melting Completion (Liquidus), °C 1640
860
Melting Onset (Solidus), °C 1590
850
Specific Heat Capacity, J/kg-K 550
400
Thermal Expansion, µm/m-K 9.1
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
23
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 36
2.8
Embodied Energy, MJ/kg 580
46
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3220
460 to 2450
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 35
20
Strength to Weight: Axial, points 43 to 60
15 to 26
Strength to Weight: Bending, points 39 to 48
16 to 23
Thermal Shock Resistance, points 52 to 71
14 to 23

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
62.5 to 64.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
11.5 to 12.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Titanium (Ti), % 92.6 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
22.5 to 26
Residuals, % 0
0 to 0.2